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Track Results of LS2 Intake

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Old 11-22-2004, 07:36 PM
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Wish I could help you there. I just dove into it w/o bothering to get before specs...
Old 11-22-2004, 07:44 PM
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Originally Posted by JS
GoGo thats good info,u raced the car is hotter air and picked up ET...
How much HP was the swap worth on your car.
I gained 20HPm with no other changes. You're right about the temps. In March the DA was +200 and in may it was +2688. I was looking foward to running this past Fall but the whole heads upgrade took longer than I expected and I missed out.
Again, no gain would make sense. But a 50HP loss? I'm really curious to hear what's the cause.
Old 11-22-2004, 08:17 PM
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Nose Up if I had known all of that before hand I would have bought an LSX to begin with. Thanks for taking the time to type all of that.

Well if you do go back to the ls6 intake, do you think you could get some before and after peak MAF readings? That would tell you for sure whether it's flowing or not.
Pmack when I go back to the Dyno I will have him give me this info.

Brad
Old 11-22-2004, 08:36 PM
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It could have been a dyno that reads low. I doubt there was that much horsepower loss. I bet it is a massive torque loss from low all the way through mid-range.
Old 11-22-2004, 08:49 PM
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Originally Posted by Another_User
It could have been a dyno that reads low. I doubt there was that much horsepower loss. I bet it is a massive torque loss from low all the way through mid-range.

There were no before numbers for the intake except for trap n et at the track.

His Dyno does not read low on other cars. I thought my car was just not a Dyno Queen lol.

I wasnt laughing at the track yesterday. I have seen cam only cars on his dyno make over 400. Their performance at the track reflected those numbers. As do my track times as of late.

I may not have lost 50 on the nose but its atleast 30. The torque numbers are probably alot lower too.

Down 5mph in better weather is quite a bit tho.

Brad
Old 11-22-2004, 09:26 PM
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Put the LS6 setup back on the car and go back to the track... see what happens
Old 11-22-2004, 09:52 PM
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Originally Posted by Draco
Put the LS6 setup back on the car and go back to the track... see what happens
With the changes made in the tune I don't think That would tell too much. Besides I dont have the old intake TB anymore. I will be borrowing them for the testing in a few weeks.

Brad
Old 11-23-2004, 12:11 AM
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Originally Posted by SquintzPallatore
Probably but I did not want to spend 1200 bucks to find out. Not that I didn't drop some cash on this setup. But I figured it was worth a try.

Brad
the fast 90 intake picked up 13hp and 10tq on my cam only car so it would definatly benefit you, i have no clue why the ls2 sucks.
Old 11-23-2004, 08:00 AM
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Originally Posted by SquintzPallatore
One thing I forgot to mention. Those track times with the ls6 intake were on a Mail Order Tune!

Brad
Sounds like you had a lot of variables. I'd do back to back dyno passes. That's a lot of mph to drop from just an intake swap.
Old 11-23-2004, 03:48 PM
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Strange things happen and cetain combinations just don't work. The ls6 and ls2 intake runners both flow the same with the big difference being the 90 mm throttle body.You would think a head&cam motor would benefit from the larger throttle body as the new 400 hp ls2 motor works well with the 90mm tb and is only 364ci.
Old 11-23-2004, 04:12 PM
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If they do in fact flow the same 'as-cast', that just means that the LS2 intake is less efficient than the LS6 per its size. We all know what velocity does for torque (ie: AFR's 205's vs 234+cc fabbed factory heads, or high velocity merge collectors vs wide open 3" collectors). The opening is larger, but the runner inlets are a tad smaller. My guess would've been GM was aiming at more low-end. They did step up to a 6L. But, things just aren't adding up here as more low-mid probably would've help @ the track...
Old 11-23-2004, 04:37 PM
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Originally Posted by LAST ONE
Strange things happen and cetain combinations just don't work. The ls6 and ls2 intake runners both flow the same with the big difference being the 90 mm throttle body.You would think a head&cam motor would benefit from the larger throttle body as the new 400 hp ls2 motor works well with the 90mm tb and is only 364ci.
I am thinking its just a bad combo. Maybe this intake just does not work well at 4500 to 6600 rpm. which is where this cam really comes alive

On the dyno the torque did not peak untill almost 5500.

I wish my scanner was working and I would post it up. That would probably help.

Brad
Old 11-23-2004, 05:09 PM
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Is the plenum area any bigger?
Old 11-24-2004, 10:56 AM
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This is driving me crazy!
I just sold my LS6 intake to buy an LS2.
Louis, are you still hoping to have some more comparisons by the end of this week?
There are going to be a lot of disapointed people if the LS2 intake turns out to be a dud.
Old 11-24-2004, 11:18 AM
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Originally Posted by CanuckSS
This is driving me crazy!
I just sold my LS6 intake to buy an LS2.
Louis, are you still hoping to have some more comparisons by the end of this week?
There are going to be a lot of disapointed people if the LS2 intake turns out to be a dud.

I really hope for everyone who has bought them that it is not a dud.

Brad
Old 11-24-2004, 12:19 PM
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Here is a graph for ya. this was not the best but it is the olny one I have a link for now.

Old 11-24-2004, 12:42 PM
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Wow I can see it now, C6 owners swapping on the ls6/78mm throttle body and selling their LS2/90mm.
Old 11-24-2004, 07:09 PM
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Default MTI Rocks! New Dyno # with LSX90, 90TB and 150 wet shot!

Just got of the phone with wayne at MTI. New numbers with LSX90,90TB, 85mm MAF, kooks 1 7/8, and new cam. I pushed 400rwhp and 380rwtq before. We just got 441RWHP and 403RWTQ. This is A4, Vig 3800 stall,12-bolt with 3.73 gears and heavy ZR-1`s. Not bad for stock bottom 346. We sprayed it with 150 wet shot and got 650RWHP and 660RWTQ. I can`t wait to see how she runs!! MTI are as good as it gets!!What do you think fellas!!
Old 11-24-2004, 07:51 PM
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Nice numbers beardws6, how big is the cam?
Old 11-25-2004, 07:17 AM
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The cam is bigger than my X1. David and crew want to annouce the cam so you will have to talk to him on the numbers. We did flycut the pistons. You should here it, Sweet. When I get her home I will video her idling and download. I just wanted to post with good tuning the 90mm stuff works good on a H/C car and loves the spray! So the LS2 should do well.


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